Liu, Zehuan; Lyu, Chen; Pan, Jiaoqing; Kong, Liang; Zhou, Xuliang; Wang, Mengqi; Yu, Hongyan; Gu, Yongjian; Shang, Zhen Source: Proceedings of SPIE - The International Society for Optical Engineering, v 13182, 2024, 2024 International Conference on Optoelectronic Information and Optical Engineering, OIOE 2024; ISSN: 0277786X, E-ISSN: 1996756X; ISBN-13: 9781510680463; DOI: 10.1117/12.3030499; Article number: 131820J; Conference: 2024 International Conference on Optoelectronic Information and Optical Engineering, OIOE 2024, March 8, 2024 - March 10, 2024; Sponsor: Academic Exchange Information Centre (AEIC); Publisher: SPIE

Author affiliation:

College of Physics and Optoelectronic Engineering, Ocean University of China, Shandong, Qingdao; 266100, China

Key Laboratory of Optoelectronic Materials and Devices, Institute of Semiconductors, Chinese Academy of Sciences, Beijing; 100083, China

Xinchen Semiconductor Co., Ltd., Jiangsu, Taicang; 215400, China

Abstract:

Lasers used in optical interconnects in data centers require electro-absorption modulators (EAMs) with low energy consumption and cost. In this study, we designed and optimized EAM through numerical simulation. By optimizing the doping concentration in the separate confinement heterostructure (SCH) layer, we achieved an increase in the maximum extinction ratio (ER) from 44 dBm to 64 dBm and a reduction in the driving voltage from 3.8 V to 2.9 V. These results provide theoretical support for further reducing the energy consumption and cost of EAM in optical communication, especially in the current era of escalating data volume.